Besides Friday’s solar eclipse, three more eclipses will occur during 2010.

According to A B G Siddharth, Director, Birla Science Centre here, there will be partial eclipse of the moon on June 26 followed by a total solar eclipse on July 11, this year. The solar eclipse, however, will not be visible in India.

The last eclipse during the year will be on December 21, a total lunar eclipse, which will also be visible from India.

In any given year there are a minimum of two eclipses.

This year, there are in all four eclipses.

Friday’s eclipse will begin at 11.30 am and cover 77 per cent of the sun at 1.32 pm. It will be over by 3.15 pm.

Inclement weather is likely to play spoilsport.

While in Hyderabad, the eclipse will be partial as it covers 77 per cent of the sun, it will be annular at the extreme tip of south near Kanyakumari where one can see the peripheral ring with the sun being covered 92 per cent and a ring like formation will appear.

Siddharth cautioned the people that the eclipse should not be seen with X-ray films or through smoked glasses or photographic films but should be seen only through certified solar eclipse special goggles or certified solar filters.

Google has released a few enhancements to Google Squared, its attempt to build spreadsheets out of search results.

Google Squared is a Google Labs project first unveiled in May at its Searchology event and set loose on the world a month later. The idea is to take the search results for a given query, such as “U.S. presidents” or “European countries,” and present the results as a table with facts and dates helpfully sorted for easier research.

The company announced on Friday “a number of improvements to the amount and quality of information you can find with Google Squared, as well as new tools to sort and export the data,” it said in a blog post. For example, Google Squared can now return 120 facts organized in rows and columns, as opposed to just 30 at launch. The filters have gotten better as well, which was a definite problem with the first batch of Google Squared results.

It’s still not ready for prime time, however: according to Google Squared, the Milwaukee Brewers play home games in both Milwaukee and San Diego. It had no idea what city is home to Yankee Stadium–let alone which New York borough–and it also seemed to miss the grand opening this year of a new Yankee Stadium to replace The House That Ruth Built.

Google said Squared is an experiment in “understanding structured data from across the Web to build new tools for organizing and presenting information.” Despite plans to offload its back-end search technology, Yahoo is trying to keep its name in the game as a search company by conducting much of the same research.